Add key type check

Author: julek-wolfssl

src/ocsp.c

@@ -2629,10 +2629,14 @@ static int OcspResponse_WriteResponse(OcspResponder* responder, byte* response,
         rsaKey = &ca->key.rsa;
         resp.sigOID = CTC_SHA256wRSA;
     }
-    else {
+    else if (ca->keyType == ECDSAk) {
         eccKey = &ca->key.ecc;
         resp.sigOID = CTC_SHA256wECDSA;
     }
+    else {
+        ret = NOT_COMPILED_IN;
+        goto out;
+    }
 
     ret = OcspResponseEncode(&resp, response, responseSz, rsaKey, eccKey,
             &responder->rng);